Popis: |
Since entering the new century, bridge techniques are developing rapidly in our country. When bridge seismic techniques had not reached a certain degree, seismic design of bridge bearings was rarely involved. However, since the amount of the bridges that had collapsed in earthquakes due to the bearings damage were becoming larger, in the design of bridges, seismic design in current bridges has been taken seriously.This paper mainly introduces several widely used seismic bearings and analyzes the structures and hysteretic characteristics of them and forecasts the development direction of seismic bearings. |